In the process of grafting,what is the term for the rooted plant part that is fixed in the soil?

$(i)$ Some organisms have the capacity of reproducing by using a single parent. Such organisms have a simple body structure.
$(a)$ What is this method called?
$(b)$ Name any four types of this method.
$(c)$ Give two examples of organisms using this method for reproduction.
$(ii)$ Identify the method of reproduction used by $Spirogyra$ and $Rhizopus$.

$(a)$ Identify the asexual method of reproduction in each of the following organisms:
$(i)$ Rose
$(ii)$ Yeast
$(iii)$ Planaria
$(b)$ What is fragmentation? Name a multicellular organism which reproduces by this method.

$(a)$ What is the location of the following :
$(i)$ $DNA$ in a cell
$(ii)$ Gene
$(b)$ Expand $DNA$.

Which method of asexual reproduction is observed in Protozoa?

Write true or false for the following statement: Menstruation lasts for about ten to fifteen days.